I have a xc 800 that will not bleed the coolant. I’ve tried bleeding it every way that has been mentioned in any post on hcs. I just get steam out of the bleed screw. If I close the bleed screw after a min or so it will boil out of the coolant bottle. I checked the belt and pump. It’s a clogged belt and I can turn the engine by the water pump impeller. I’ve done compression tests and get 150 cold and 135/140 hot. I’ve done coolant compression test and will hold 15 psi.